Yep, definately the booze. I have that too when I drink, so I don't drink. For me, it was a vicious cycle. The drinks kept my spasms under control, for example, as we went out to dinner. But the next day it was intensified (pain, spasms, cramping, and watery diarrhea) that I could not leave the house for that day. I hope that helps...
I think you answered your own question. If it goes away when not drinking then that's your answer. Do like your husband did, your body is trying to tell you that it time to stop....listen to it. Take care...